CVE-2023-53372

In the Linux kernel, the following vulnerability has been resolved: sctp: fix a potential overflow in sctp_ifwdtsn_skip Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only checks the pos against the end of the chunk. However, the data left for the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference it as struct sctp_ifwdtsn_skip may cause coverflow. This patch fixes it by checking the pos against "the end of the chunk - sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to sctp_fwdtsn_skip.

The Linux Kernel, the operating system core itself.

Security Fix(es):

In the Linux kernel, the following vulnerability has been resolved:

net/tunnel: wait until all sk_user_data reader finish before releasing the sock

There is a race condition in vxlan that when deleting a vxlan device during receiving packets, there is a possibility that the sock is released after getting vxlan_sock vs from sk_user_data. Then in later vxlan_ecn_decapsulate(), vxlan_get_sk_family() we will got NULL pointer dereference. e.g.

#0 [ffffa25ec6978a38] machine_kexec at ffffffff8c669757 #1 [ffffa25ec6978a90] __crash_kexec at ffffffff8c7c0a4d #2 [ffffa25ec6978b58] crash_kexec at ffffffff8c7c1c48 #3 [ffffa25ec6978b60] oops_end at ffffffff8c627f2b #4 [ffffa25ec6978b80] page_fault_oops at ffffffff8c678fcb #5 [ffffa25ec6978bd8] exc_page_fault at ffffffff8d109542 #6 [ffffa25ec6978c00] asm_exc_page_fault at ffffffff8d200b62 [exception RIP: vxlan_ecn_decapsulate+0x3b] RIP: ffffffffc1014e7b RSP: ffffa25ec6978cb0 RFLAGS: 00010246 RAX: 0000000000000008 RBX: ffff8aa000888000 RCX: 0000000000000000 RDX: 000000000000000e RSI: ffff8a9fc7ab803e RDI: ffff8a9fd1168700 RBP: ffff8a9fc7ab803e R8: 0000000000700000 R9: 00000000000010ae R10: ffff8a9fcb748980 R11: 0000000000000000 R12: ffff8a9fd1168700 R13: ffff8aa000888000 R14: 00000000002a0000 R15: 00000000000010ae ORIG_RAX: ffffffffffffffff CS: 0010 SS: 0018 #7 [ffffa25ec6978ce8] vxlan_rcv at ffffffffc10189cd [vxlan] #8 [ffffa25ec6978d90] udp_queue_rcv_one_skb at ffffffff8cfb6507 #9 [ffffa25ec6978dc0] udp_unicast_rcv_skb at ffffffff8cfb6e45 #10 [ffffa25ec6978dc8] __udp4_lib_rcv at ffffffff8cfb8807 #11 [ffffa25ec6978e20] ip_protocol_deliver_rcu at ffffffff8cf76951 #12 [ffffa25ec6978e48] ip_local_deliver at ffffffff8cf76bde #13 [ffffa25ec6978ea0] __netif_receive_skb_one_core at ffffffff8cecde9b #14 [ffffa25ec6978ec8] process_backlog at ffffffff8cece139 #15 [ffffa25ec6978f00] __napi_poll at ffffffff8ceced1a #16 [ffffa25ec6978f28] net_rx_action at ffffffff8cecf1f3 #17 [ffffa25ec6978fa0] __softirqentry_text_start at ffffffff8d4000ca #18 [ffffa25ec6978ff0] do_softirq at ffffffff8c6fbdc3

Reproducer: https://github.com/Mellanox/ovs-tests/blob/master/test-ovs-vxlan-remove-tunnel-during-traffic.sh

Fix this by waiting for all sk_user_data reader to finish before releasing the sock.(CVE-2022-50405)

In the Linux kernel, there is a vulnerability in the USB host controller interface (xHCI). When the xHC host is dying or being removed, endpoints are not properly cleaned up, remaining in the bandwidth list when freeing the virtual device. This causes a list_del corruption kernel crash when unbinding xhci-pci, as xhci_mem_cleanup() later attempts to delete already freed endpoints from the bandwidth list. This vulnerability only affects hosts that use software bandwidth checking, which currently is only the xHC in Intel Panther Point PCH (Ivy Bridge).(CVE-2022-50470)

In the Linux kernel, the following vulnerability has been resolved:thermal: intel_powerclamp: Use get_cpu() instead of smp_processor_id() to avoid crashWhen CPU 0 is offline and intel_powerclamp is used to injectidle, it generates kernel BUG:BUG: using smp_processor_id() in preemptible [00000000] code: bash/15687caller is debug_smp_processor_id+0x17/0x20CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+ #57Call Trace:<TASK>dump_stack_lvl+0x49/0x63dump_stack+0x10/0x16check_preemption_disabled+0xdd/0xe0debug_smp_processor_id+0x17/0x20powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp]......Here CPU 0 is the control CPU by default and changed to the current CPU,if CPU 0 offlined. This check has to be performed under cpus_read_lock(),hence the above warning.Use get_cpu() instead of smp_processor_id() to avoid this BUG. rjw: Subject edits

In the Linux kernel, the following vulnerability has been resolved:iommu/amd: Fix pci device…

In the Linux kernel, the following vulnerability has been resolved: sctp: fix a potential overflow in sctp_ifwdtsn_skip Currently, when traversing ifwdtsn skips with _sctp_walk_ifwdtsn, it only checks the pos against the end of the chunk. However, the data left for the last pos may be < sizeof(struct sctp_ifwdtsn_skip), and dereference it as struct sctp_ifwdtsn_skip may cause coverflow. This patch fixes it by checking the pos against "the end of the chunk - sizeof(struct sctp_ifwdtsn_skip)" in sctp_ifwdtsn_skip, similar to sctp_fwdtsn_skip.

• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• drm/i915/gt: Fix timeline left held on VMA alloc error {CVE-2025-38389}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• bpf: Avoid __bpf_prog_ret0_warn when jit fails {CVE-2025-38280}
• ipv6: Fix infinite recursion in fib6_dump_done(). {CVE-2024-35886}
• netfilter: nf_tables: do not compare internal table flags on updates {CVE-2024-27065}
• init/main.c: Fix potential static_command_line memory overflow {CVE-2024-26988}
• wireguard: netlink: check for dangling peer via is_dead instead of empty list {CVE-2024-26951}
• platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store() {CVE-2025-38077}
• exfat: fix double free in delayed_free {CVE-2025-38206}
• net: openvswitch: Fix the dead loop of MPLS parse {CVE-2025-38146}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write {CVE-2023-54286}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• fbcon: Make sure modelist not set on unregistered console {CVE-2025-38198}
• crypto: lzo - Fix compression buffer overrun {CVE-2025-38068}
• software node: Correct a OOB check in {CVE-2025-38342}
• nbd: fix uaf in nbd_genl_connect() error path {CVE-2025-38443}
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• cifs: fix potential use-after-free bugs in TCP_Server_Info::hostname {CVE-2023-53751}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• PCI/ASPM: Fix link state exit during switch upstream function removal {CVE-2024-58093}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: fix wrong setting of max_corr_read_errors {CVE-2023-53313}
• md/raid10: fix overflow of md/safe_mode_delay
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• net: fec: Better handle pm_runtime_get() failing in .remove() {CVE-2023-53308}
• rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails {CVE-2023-53307}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• RDMA/mlx5: Return the firmware result upon destroying QP/RQ {CVE-2023-53286}
• RDMA/mlx5: Handle DCT QP logic separately from low level QP interface
• net/mlx5e: Use correct encap attribute during invalidation {CVE-2023-54074}
• net/mlx5: Nullify qp->dbg pointer post destruction
• scsi: lpfc: Fix use-after-free KFENCE violation during sysfs firmware write {CVE-2023-53282}
• net: ena: fix shift-out-of-bounds in exponential backoff {CVE-2023-53272}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• sched/fair: Don't balance task to its current running CPU {CVE-2023-53215}
• netfilter: allow exp not to be removed in nf_ct_find_expectation {CVE-2023-52927}
• wifi: ath9k: Fix use-after-free in ath9k_hif_usb_disconnect() {CVE-2022-50881}

• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• ext4: fix bug_on in __es_tree_search caused by bad boot loader inode {CVE-2022-50638}
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() {CVE-2023-53803}
• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• dm cache: free background tracker's queued work in {CVE-2023-53765}
• drm/amdkfd: Fix UBSAN shift-out-of-bounds warning {CVE-2021-4460}
• drm/vmwgfx: Validate the box size for the snooped cursor {CVE-2022-36280,CVE-2022-50440}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• media: dvb-frontends: avoid stack overflow warnings with clang {CVE-2024-27075}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() {CVE-2022-50423}
• Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times {CVE-2022-50419}
• ACPICA: Fix error code path in acpi_ds_call_control_method() {CVE-2022-50411}
• ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS {CVE-2022-50315}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace {CVE-2023-54286}

• scsi: ses: Fix slab-out-of-bounds in ses_enclosure_data_process() {CVE-2023-53803}
• md/raid1: Fix stack memory use after return in raid1_reshape {CVE-2025-38445}
• ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() {CVE-2025-38249}
• atm: clip: Fix infinite recursive call of clip_push(). {CVE-2025-38459}
• dm cache: free background tracker's queued work in {CVE-2023-53765}
• drm/vmwgfx: Validate the box size for the snooped cursor {CVE-2022-36280,CVE-2022-50440}
• vsock: Do not allow binding to VMADDR_PORT_ANY {CVE-2025-38618}
• ice: set tx_tstamps when creating new Tx rings via ethtool {CVE-2022-50710}
• sctp: avoid NULL dereference when chunk data buffer is {CVE-2025-40240}
• ip6_vti: fix slab-use-after-free in decode_session6 {CVE-2023-53821}
• wifi: mac80211_hwsim: drop short frames {CVE-2023-53321}
• ext4: add bounds checking in get_max_inline_xattr_value_size() {CVE-2023-53285}
• md/raid10: fix null-ptr-deref in raid10_sync_request {CVE-2023-53832}
• dm flakey: fix a crash with invalid table line {CVE-2023-53786}
• wifi: mt7601u: fix an integer underflow {CVE-2023-53679}
• ext4: fix bug_on in __es_tree_search caused by bad boot loader inode {CVE-2022-50638}
• ext4: add EXT4_IGET_BAD flag to prevent unexpected bad inode
• ext4: add helper to check quota inums
• ext4: fix bug_on in __es_tree_search caused by bad quota inode
• quota: Factor out setup of quota inode
• USB: usbtmc: Fix direction for 0-length ioctl control messages {CVE-2023-53761}
• ACPICA: Add AML_NO_OPERAND_RESOLVE flag to Timer {CVE-2023-53395}
• drm/amd/display: Check num_valid_sets before accessing reader_wm_sets[] {CVE-2024-46815}
• Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition {CVE-2023-1989}
• nvmet: avoid potential UAF in nvmet_req_complete() {CVE-2023-53116}
• wifi: brcmfmac: Fix potential stack-out-of-bounds in brcmf_c_preinit_dcmds() {CVE-2022-50258}
• dm raid: fix address sanitizer warning in raid_status {CVE-2022-50084}
• vt: Clear selection before changing the font {CVE-2022-49948}
• ipvs: fix WARNING in ip_vs_app_net_cleanup() {CVE-2022-49917}
• capabilities: fix undefined behavior in bit shift for CAP_TO_MASK {CVE-2022-49870}
• ata: libata-transport: fix double ata_host_put() in ata_tport_add() {CVE-2022-49826}
• ath9k_htc: fix potential out of bounds access with invalid rxstatus->rs_keyix {CVE-2022-49503}
• selinux: Add boundary check in put_entry() {CVE-2022-50200}
• rbd: avoid use-after-free in do_rbd_add() when rbd_dev_create() fails {CVE-2023-53307}
• RDMA/mlx5: Return the firmware result upon destroying QP/RQ {CVE-2023-53286}
• sched/fair: Don't balance task to its current running CPU {CVE-2023-53215}
• powercap: intel_rapl: fix UBSAN shift-out-of-bounds issue {CVE-2022-50366}
• ACPI: tables: FPDT: Don't call acpi_os_map_memory() on invalid phys address {CVE-2022-50320}
• wifi: ath9k: Fix use-after-free in ath9k_hif_usb_disconnect() {CVE-2022-50881}
• slcan: Don't transmit uninitialized stack data in padding {CVE-2020-11494}
• media: dvb-frontends: avoid stack overflow warnings with clang {CVE-2024-27075}
• PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free {CVE-2023-53446}
• cifs: Fix warning and UAF when destroy the MR list {CVE-2023-53427}
• sctp: fix a potential overflow in sctp_ifwdtsn_skip {CVE-2023-53372}
• md/raid10: check slab-out-of-bounds in md_bitmap_get_counter {CVE-2023-53357}
• lwt: Fix return values of BPF xmit ops {CVE-2023-53338}
• ubi: ensure that VID header offset + VID header size <= alloc, size {CVE-2023-53265}
• ACPICA: Fix use-after-free in acpi_ut_copy_ipackage_to_ipackage() {CVE-2022-50423}
• Bluetooth: hci_sysfs: Fix attempting to call device_add multiple times {CVE-2022-50419}
• ACPICA: Fix error code path in acpi_ds_call_control_method() {CVE-2022-50411}
• ata: ahci: Match EM_MAX_SLOTS with SATA_PMP_MAX_PORTS {CVE-2022-50315}
• wifi: iwlwifi: dvm: Fix memcpy: detected field-spanning write backtrace {CVE-2023-54286}